Home / 18,930.09-28,358.74-10,584.80

Finding the Fourth Proportional to 18,930.09, 28,358.74 and 10,584.80

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Solution

The fourth proportional to 18,930.09, 28,358.74 and 10,584.80 is: 15,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.09 : 28,358.74 = 10,584.80 : x
  2. Step 2: Convert to fraction form
    18,930.09/28,358.74 = 10,584.80/x
  3. Step 3: Cross multiply
    18,930.09x = 28,358.74 × 10,584.80
  4. Step 4: Simplify right side
    18,930.09x = 300,171,591.15
  5. Step 5: Solve for x
    x = 300,171,591.15/18,930.09
  6. Step 6: Final answer
    x = 15,856.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.